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United States

United States Geography Stats

Definitions

  • Area > Comparative: The area of various small countries expressed in comparison to various areas within the United States of America.
  • Area > Land: Total land area in square kilometres
  • Area > Total: Total area in square kilometers
  • Area > Water: Total water area in square kilometers
  • Climate: A brief description of typical weather regimes throughout the year.
  • Coastline: The total length of the boundary between the land area (including islands) and the sea.
  • Elevation extremes > Highest point: Highest point above sea level
  • Elevation extremes > Lowest point: This entry is derived from Geography > Elevation extremes, which includes both the highest point and the lowest point.
  • Environment > Current issues: This entry lists the most pressing and important environmental problems. The following terms and abbreviations are used throughout the entry:
    Acidification - the lowering of soil and water pH due to acid precipitation and deposition usually through precipitation; this process disrupts ecosystem nutrient flows and may kill freshwater fish and plants dependent on more neutral or alkaline conditions (see acid rain).
    Acid rain - characterized as containing harmful levels of sulfur dioxide or nitrogen oxide; acid rain is damaging and potentially deadly to the earth's fragile ecosystems; acidity is measured using the pH scale where 7 is neutral, values greater than 7 are considered alkaline, and values below 5.6 are considered acid precipitation; note - a pH of 2.4 (the acidity of vinegar) has been measured in rainfall in New England.
    Aerosol - a collection of airborne particles dispersed in a gas, smoke, or fog.
    Afforestation - converting a bare or agricultural space by planting trees and plants; reforestation involves replanting trees on areas that have been cut or destroyed by fire.
    Asbestos - a naturally occurring soft fibrous mineral commonly used in fireproofing materials and considered to be highly carcinogenic in particulate form.
    Biodiversity - also biological diversity; the relative number of species, diverse in form and function, at the genetic, organism, community, and ecosystem level; loss of biodiversity reduces an ecosystem's ability to recover from natural or man-induced disruption.
    Bio-indicators - a plant or animal species whose presence, abundance, and health reveal the general condition of its habitat.
    Biomass - the total weight or volume of living matter in a given area or volume.
    Carbon cycle - the term used to describe the exchange of carbon (in various forms, e.g., as carbon dioxide) between the atmosphere, ocean, terrestrial biosphere, and geological deposits.
    Catchments - assemblages used to capture and retain rainwater and runoff; an important water management technique in areas with limited freshwater resources, such as Gibraltar.
    DDT (dichloro-diphenyl-trichloro-ethane) - a colorless, odorless insecticide that has toxic effects on most animals; the use of DDT was banned in the US in 1972.
    Defoliants - chemicals which cause plants to lose their leaves artificially; often used in agricultural practices for weed control, and may have detrimental impacts on human and ecosystem health.
    Deforestation - ...
    Full definition
  • Note: This entry includes miscellaneous geographic information of significance not included elsewhere.
  • Irrigated land: The number of square kilometers of land area that is artificially supplied with water.
  • Land boundaries > Border countries: Length of land boundaries by border country
  • Land boundaries > Total: The total length of all land boundaries and the individual lengths for each of the contiguous border countries
  • Maritime claims > Contiguous zone: This entry is derived from Geography > Maritime claims, which includes the following claims, the definitions of which are excerpted from the United Nations Convention on the Law of the Sea (UNCLOS), which alone contains the full and definitive descriptions:
    territorial sea - the sovereignty of a coastal state extends beyond its land territory and internal waters to an adjacent belt of sea, described as the territorial sea in the UNCLOS (Part II); this sovereignty extends to the air space over the territorial sea as well as its underlying seabed and subsoil; every state has the right to establish the breadth of its territorial sea up to a limit not exceeding 12 nautical miles; the normal baseline for measuring the breadth of the territorial sea is the mean low-water line along the coast as marked on large-scale charts officially recognized by the coastal state; where the coasts of two states are opposite or adjacent to each other, neither state is entitled to extend its territorial sea beyond the median line, every point of which is equidistant from the nearest points on the baseline from which the territorial seas of both states are measured; the UNCLOS describes specific rules for archipelagic states.
    contiguous zone - according to the UNCLOS (Article 33), this is a zone contiguous to a coastal state's territorial sea, over which it may exercise the control necessary to: prevent infringement of its customs, fiscal, immigration, or sanitary laws and regulations within its territory or territorial sea; punish infringement of the above laws and regulations committed within its territory or territorial sea; the contiguous zone may not extend beyond 24 nautical miles from the baselines from which the breadth of the territorial sea is measured (e.g., the US has claimed a 12-nautical mile contiguous zone in addition to its 12-nautical mile territorial sea); where the coasts of two states are opposite or adjacent to each other, neither state is entitled to extend its contiguous zone beyond the median line, every point of which is equidistant from the nearest points on the baseline from which the contiguous zone of both states are measured.
    exclusive economic zone (EEZ) - the UNCLOS (Part V) defines the EEZ as a zone beyond and adjacent to the territorial sea in which a coastal state has: sovereign rights for the purpose of exploring and exploiting, conserving and managing the natural resources, whether living or non-living, of the waters superjacent to the seabed and of the seabed and its subsoil, and with regard to other ...
    Full definition
  • Natural resources: A country's mineral, petroleum, hydropower, and other resources of commercial importance.
STAT AMOUNT DATE RANK HISTORY
Area > Comparative about half the size of Russia; about three-tenths the size of Africa; about half the size of South America (or slightly larger than Brazil); slightly larger than China; more than twice the size of the European Union 2013
Area > Land 9.16 million sq km 2008 4th out of 235
Area > Total 9.83 million sq km 2013 4th out of 251
Area > Water 664,709 sq km 2013 3rd out of 246
Climate mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the great plains west of the Mississippi River, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains 2013
Coastline None 2013
Elevation extremes > Highest point Mount McKinley (Denali) 6,194 m (highest point in North America) 2013
Elevation extremes > Lowest point Death Valley -86 m 2013
Environment > Current issues air pollution resulting in acid rain in both the US and Canada; large emitter of carbon dioxide from the burning of fossil fuels; water pollution from runoff of pesticides and fertilizers; limited natural freshwater resources in much of the western part of the country require careful management; desertification 2013
Note world's third-largest country by size (after Russia and Canada) and by population (after China and India); Mt. McKinley is highest point in North America and Death Valley the lowest point on the continent 2013
Irrigated land 230,000 sq km 2008 3rd out of 174
Land boundaries > Border countries Canada 8,893 km (including 2,477 km with Alaska), Mexico 3,141 km 2013
Land boundaries > Total 12,034 km 2013 6th out of 166
Maritime claims > Contiguous zone 24 2013 59th out of 83
Natural resources coal, copper, lead, molybdenum, phosphates, rare earth elements, uranium, bauxite, gold, iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum, natural gas, timber 2013

SOURCES: CIA World Factbooks 18 December 2003 to 28 March 2011; CIA World Factbooks 2010, 2011, 2012, 2013

Citation

"United States Geography Stats", NationMaster. Retrieved from http://www.nationmaster.com/country-info/profiles/United-States/Geography

NationMaster

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Houses are not cheap and not every person is able to buy it. But, loans was created to help people in such situations.

Posted on 06 May 2010

Janell28Soto

Janell28Soto

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I'm British ,but I love the USA as much as any American. As far as I'm concerned there isn't another country on the planet that can compare with America. I wish that I had been born in that great country.

Posted on 27 Dec 2009

Elwyn Richards

Elwyn Richards

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